| Products | Socket Head Cap Screws |
| Material | carbon steel, stainless steel, Alloy Steel . |
| Standard | DIN912 /ISO4762 |
| Diameter | M2-M48 |
| Length | 4mm-400mm |
| Pitch | 0.4mm 0.45mm 0.5mm 0.7mm 0.8mm 1mm 1.25mm 1.5mm 1.75mm 2.0mm 2.5mm 3.0mm |
| Finish | Zinc Plated .Black Oxide,etc. |
| Grade | 4.8, 8.8 Grade. 10.9 Grade.12.9 Grade |
| Head Type | Cylindrical Hexagon Socket Cap Head |
| Thread Type | Fully Threaded , Partially Thread |
| Features | Exceptional strength and durability,High Tensile ,Corrosion-resistance Abrasion-resistance .Anti-rust.Easy installation |
| Application | Ideal for use in automotive.construction. Machinery.and other industries fastening applications where high-strength fasteners are needed |
| Packing | Poly bags.Box.Cartons.Wooden Pallets |
High strength hexagonal bolts usually refer to bolts with a grade of 8.8 or above, which have high tensile and yield strength, and are therefore called high-strength. The grade strength of hexagonal bolts can reach 12.9, and the material is mostly carbon steel, which is iron. This type of bolt, due to its unique hexagonal head and threaded design, can provide greater clamping force and better stability in fasteners. There are strict standards and regulations for the hardness, performance requirements, and usage of high-strength hexagonal bolts to ensure their safety and reliability in various application scenarios.
Hardness and performance requirements: The tensile strength of high-strength hexagonal bolts can reach 400MPa level, and the nominal yield strength can reach 240MPa level. For high-strength hexagon socket head screws with a performance level of 10.9, the nominal tensile strength of the material is 1000 MPa and the nominal yield strength is 900 MPa. These bolts usually adopt internationally recognized standards to ensure consistent performance under different materials and conditions.
Purpose: High strength hexagonal bolts are widely used in various working environments that require heavy loads and vibrations due to their high strength and stability, such as connecting machine tools and their accessories. The head design of these bolts ensures that the surface of the workpiece remains flat and aesthetically pleasing during installation. Additionally, due to their unique head design, specialized hex wrenches are required for installation and disassembly, which may cause inconvenience in situations where frequent disassembly is necessary, but on the other hand, it guarantees safety during use.
Material and grade: High strength hexagonal bolts come in various materials, including stainless steel, carbon steel, alloy steel, etc. Common grades include 4.8, 8.8, 10.9, and 12.9, with bolts above 8.8 being considered high-strength bolts. The standards and specifications of these bolts follow the national standard GB70-1985, providing multiple specifications to meet different application needs.
The standards for high-strength hexagonal bolts mainly include material, performance grade, size specifications, and other aspects.
Material: High strength hexagonal bolts are usually made of materials such as stainless steel, carbon steel, and alloy steel. These materials have good mechanical properties and can meet the requirements of high-strength applications.
Performance level: The performance level of high-strength hexagonal bolts is usually 8.8 or above, including 8.8, 10.9, 12.9, etc. These grades are classified based on the tensile strength and yield strength of bolts, with grade 12.9 bolts having extremely high strength and hardness, suitable for critical connection parts such as mechanical structures with high strength requirements in aerospace, automotive engines, etc.
Size specifications: There are various sizes of high-strength hexagonal bolts, including M1.6 to M6. Specific specifications such as M1.6 hexagon socket bolts have clear standards for head diameter, thickness, dimensions of the opposite sides of the hexagon socket, thread length, etc. As the diameter of bolts increases, such as M2, M2.5, M3, M4, M5, M6, etc., their size specifications will also increase accordingly to meet the needs of different application scenarios.
Application scenarios: High strength hexagonal bolts are suitable for applications that can withstand large loads and harsh environments, such as heavy machinery, pressure vessels, and special equipment. Choosing the appropriate hexagon socket bolt requires consideration of its strength grade, material characteristics, and application environment to ensure the reliability and safety of the connection.
In summary, the standards for high-strength hexagonal bolts cover multiple aspects such as material, performance grade, and size specifications, ensuring their reliability and safety in various high-strength application scenarios
High strength hexagonal bolts are mainly used in applications with high mechanical performance requirements, such as injection molding machinery, hydraulic equipment, mold assembly, gearboxes, bearing seats, etc. These bolts, due to their high strength and durability, can meet the critical connection requirements of various mechanical equipment. In addition, they are also used in the field of construction and decoration to fix various materials such as boards and pipes, as well as in the field of automotive maintenance to fasten body parts, engine components, etc.
The strength grade of high-strength hexagonal bolts is usually 12.9, which means that their surface hardness after heat treatment can reach 39-44 degrees, with a minimum tensile strength of 1220 Mpa and a hardness of 39-44 HRC. This type of screw is usually made of stainless steel, carbon steel, or alloy steel, ensuring its excellent mechanical properties.
Product name All thread Payment method L/C, D/A ,D/P ,T/T, Wester Union,MoneyGram Availability 20000 tons per month Packing method Wooden cases
item value Color Yellow zinc System of Measurement Metric Place of Origin China Hebei Material Steel Product name Hit the expansion bolt Surface treatment Stainless steel / galvanized Size M6-M24 MOQ 1000PCS Length customer demand Delivery time 15-30days Package Carton+Small Box+Pallet Port Tianjin Port PAYMENT 100% TT Anchor Type Expansion Ahchor Bolt
Material Carbon Steel / stainless steel/Zinc/Black/Customized Color Black / Blue / Yellow Zinc Plated / Plain Standard DIN,ASME,ASNI,ISO Finished Zinc Plated,Hot Dip Galvanized Steel,Dacromet,Nickel Plated,Black Oxide,Plain Mark According to customer’s requirement Delivery time Normally in15-30 days. Package Cartons&pallets or according to customer’s requirement.
item value Shank Type smooth Head Style cylindrical head Place of Origin China Hebei Brand Name Dewell Model Number Customized Type welding screw Material carbon Steel Head Diameter 6mm-22mm
item 8.8 High Tensile Black Oxide Flat Washer Finish Black, ZINC, Plain Style flat washer Material Stainless Steel, Steel Application Heavy Industry, Retail Industry, General Industry Place of Origin HEB Model Number 6-30 Standard DIN Material Stainlesss Steel， Carbon Steel Surface treatment White Zinc .Yellow Zinc. HDG MOQ 5000pcs Grade 4.8/ 8.8/ 10.9/ 12.9 Ect
Product Name High Strength Carbon Steel Chemical Anchor Bolt Chemical Agent Expansion Screw For Metal Building Finish ZINC, Yellow Material Stainless steel, Carbon Steel Place of Origin China Guangdong Brand Name LPL Model Number LPL-HXLS Standard GB Product name High Strength Carton Steel Chemical Anchor Bolt Material Carbon Steel Application Industry&Building Length Customzied Packaging Carton + Pallet Brand Name LPL Size Customzied Product standards GB Standard
Cross recessed pan head self drilling screw Size:M4.2-M4.8 Length:12mm-50mm Material: carbon steel Finish: white zinc plated, blue zinc plated,yellow zinc plated, etc.
The window regulator motor is the power source of the window glass lifting system, responsible for driving the glass up and down. It is usually installed inside the car body or in the car door, connected to the window glass through steel wire ropes or guide rails, to achieve the control of the window lifting. The working principle of a motor is based on electromagnetic induction and changes in the direction of current. By changing the direction of current, the motor’s forward and reverse rotation can be controlled, thereby achieving the up or down movement of the car window. The start and stop of the motor are controlled by the switch inside the car, making it convenient for the driver to operate. In addition, in order to protect the motor, wire rope, and guide rail, a lubrication system is also installed in the system to provide lubricating oil for these components, reduce friction, and extend service life.
Product name Butterfly nut texture of material SS304 SS316 stainless steel，mild steel, Carbon steel,1018,1022,10B21,SCM435,12L14, 1215,4140, 4340, 5120,5140,5145, etc. standard ASME ISO DIN BS Grade A2 A4 or grade 2 5 8 10 Surface plain, zinc plated, hot dip galvanized ,black oxide packing Plastic bag / carton
A double-stacked self-locking washer is a special mechanical connector designed to prevent bolts from loosening, especially in high-vibration or high-load environments.It consists of two spring washers nested inside each other in an S-shaped configuration. The outer spring washer has ends that bend inwards, while the inner spring washer has ends that bend outwards, creating a two-way self-locking feature.The working principle of this washer is based on elastic deformation. When placed between connecting parts, the inner curved part of the outer spring ring interlocks with the outer curved part of the inner spring ring, creating a locking force that prevents the connecting parts from loosening under vibration or load.The advantages of the double-stacked self-locking washer include high reliability, easy installation, and a wide range of applications.It is suitable for various mechanical connections, such as threaded connections and pin connections, and is widely used in industrial production and machinery manufacturing, especially in the automotive manufacturing process, where it is often used to connect engine and chassis systems to improve the safety and reliability of the car.
Butterfly buckles and double ring buckles (also known as butterfly buckles, connecting rings, or linking rings) are mainly used to connect the chains, rings, and hooks in chain rigging. The design of this connecting ring allows for the pivot connection of a rotating ring body at each end of a connecting ring body. Its characteristic is that the body is a hollow cylindrical body, and the two rotating ring bodies are formed by a protruding embedded part at one end of a linear rod, and the other end is bent into a ring and then wound around a straight section for positioning.
Product name All thread Payment method L/C, D/A ,D/P ,T/T, Wester Union,MoneyGram Availability 20000 tons per month Packing method Wooden cases
item value Color Yellow zinc System of Measurement Metric Place of Origin China Hebei Material Steel Product name Hit the expansion bolt Surface treatment Stainless steel / galvanized Size M6-M24 MOQ 1000PCS Length customer demand Delivery time 15-30days Package Carton+Small Box+Pallet Port Tianjin Port PAYMENT 100% TT Anchor Type Expansion Ahchor Bolt
Material Carbon Steel / stainless steel/Zinc/Black/Customized Color Black / Blue / Yellow Zinc Plated / Plain Standard DIN,ASME,ASNI,ISO Finished Zinc Plated,Hot Dip Galvanized Steel,Dacromet,Nickel Plated,Black Oxide,Plain Mark According to customer’s requirement Delivery time Normally in15-30 days. Package Cartons&pallets or according to customer’s requirement.
item value Shank Type smooth Head Style cylindrical head Place of Origin China Hebei Brand Name Dewell Model Number Customized Type welding screw Material carbon Steel Head Diameter 6mm-22mm
